I did my ATPL theory with them. They seem to be a very professional bunch. Mix of older, experienced IR+ME instructors, and some young and energetic LOT and RYR FOs, They are located in quite climatic, ex-military part of Bydgoszcz airfield, but infrastructure is brand new (even though it is located in stalkerish complex of soviet era hangars) . Their fleet consists of some Tecnams, both single and double engined, and some C152s, and - if I am not mistaken - one of those c152s is extended range version, so you can test if your buttocks have what it takes to do some serious hour building. Another advantage is affordable accommodation in school building. Money wise they are on the cheaper end of the scale, especially if you consider buying hour packets. One of disadvantages is that they are on a controlled airfield, so if you are not staying on the school premises then you have to go through security check each time you visit them. Not a problem if you plan to spend 4 hours in the air, but if you are in for few quick patterns then it can become an issue. Give them a call, or message them on Facebook. They are in process of re-branding to Zonda Aviation, or something like that (totally unnecessary in my opinion).